Intercom wiring, Music inputs, Music muting – PS Engineering PAR200A Installation Manual User Manual
Page 15
PS Engineering Inc. ®
PAR200A Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0200
Page 2-8
June 2014
Table 2-4 Unswitched input table
J1, pins 31, 29 and J2 pin 15 are unswitched, unmuted inputs # 1, 3 and 4, respectively. These inputs are
presented to the pilot and copilot regardless of the audio configuration, and will always mute the entertain-
ment inputs. These 510Ω inputs can be used for altimeter DH audio, GPS waypoint audio, autopilot dis-
connect tones, or any other critical audio signal.
The audio low for unswitched #4 (J2, pin 15) should be connected to a convenient audio low. However, this
should NOT be connected to Music Low.
Unswitched #1 is presented to the pilot headphone in fail-safe (off) mode.
NOTE
Inputs 1, 2 and 4 are fixed (1:1), and any audio level adjustments must be made at the input source. Unswitched #3 has
a variable adjustment control located on the bottom side of the unit. This control allows you to control the volume level
of that unswitched input from 50% to 200% of the input level. Refer to Adjustments section.
2.7 Intercom wiring
See Appendix C and D for intercom connection configurations. It is critical to the proper operation of this
system to have this connector wiring made in accordance with these diagrams. Use 2- and 3-conductor,
MIL-spec cable as shown. Connect the shields at the audio panel end only, and tie to the audio low inputs
as shown.
NOTE
The system harness can be custom made by PS Engineering, Inc. Simply call the factory or
to obtain a wire harness work sheet. The harness will be made to your specifications and
fully functionally tested. Harness can be ordered with jack, or without the intercom jacks installed, for easi-
er wire routing through the aircraft.
2.7.1
Music Inputs
The PAR200A has two INDEPENDENT inputs wired into the rear connectors, in addition to the Blue-
tooth® music streaming (which is presented as Music 1). Music input number 1 is J2 pins 23 (left channel)
and 24 (right channel), with respect to pin 25, and Music number 2 is connected to 26 (left channel), 27
(right channel), with respect to 28.
Music #1 is available to the pilot and copilot positions, only, in normal configuration. Music 1 can be hear
by all aircraft occupants, if Music 1 all headsets is activated. See §2.7.1.1
Music 2 is only heard by the passengers.
See
§3.10 for music distribution information.
N O T E
U s e t h e l o w l e v e l o u t p u t o f a n y a d d i t i o n a l e n t e r t a i n m e n t d e v i c e t o c o n n e c t t o t h e a u -
d i o p a n e l . M a x i m u m s i g n a l l e v e l i s 3 V A C p -p . D O N O T u s e a s p e a k e r - l e v e l o u t p u t ,
t h i s wi l l c a u s e i n t e r n a l d a m a g e i n t h e a u d i o p a n e l .
2.7.1.1
Music 1 all headsets (J2, Pin 22)
If J2, Pin 22 is connected to aircraft ground, Music 1 will also be heard in the passengers’ headsets. Music
2 will be disabled when J2, Pin 22 is grounded.
2.7.2
Music muting
The PAR200A incorporates a "Soft Mute™" system. This will mute the music devices during intercom
conversation or radio reception. The four muting modes are controlled by the front panel “Mute” button.
See §
for more information.
CAUTION